1.Anti-N-methyl-D-aspartate receptor encephalitis in children
International Journal of Pediatrics 2013;(2):179-182
Anti-N-methyl-D-aspartate receptor encephalitis is an autoimmune syndrome of central nervous system.The main clinical manifestations include psychiatric symptoms,movement disorders and seizures.It is often misdiagnosed as viral encephalitis.Tumors,especially the ovarian teratoma,play an important role in the disease.The prevalence in children is beyond imagination.Anti-NMDAR antibodies are specific diagnostic tests.Immune suppression is the main treatment.The first-line treatments include corticosteroids,intravenous immunoglobulin,and plasmapheresis.The second-line treatments include biological agents and cytotoxic drugs.Early diagnosis and treatment are essential for neurologic recovery.Overall prognosis is good.
3.Effect of Tongxinluo capsule combined with metoprolol on elderly patients with coronary heart disease and angina pectoris and its influence on hemorheology and inflammatory factors
Chinese Journal of Primary Medicine and Pharmacy 2017;24(19):2925-2929
Objective To investigate the effect of Tongxinluo capsule combined with metoprolol on elderly patients with coronary heart disease and angina pectoris and its influence on hemorheology and inflammatory factors.Methods 135 elderly patients with angina pectoris of coronary heart disease were selected,and they were randomly divided into treatment group (68 cases) and control group (67 cases).The treatment group was treated with Tongxinluo capsule combined with metoprolol,while the control group was treated with metoprolol.The two groups were treated for 8 weeks.The curative effect of the two groups was compared,the number and duration of angina pectoris,the changes of hemorheology and inflammatory factors before and after treatment were compared.Results The total effective rate of the treatment group (94.12%) was higher than 76.12% of the control group (P < 0.05).After treatment,the frequency and duration of angina pectoris in the treatment group were (6.03 ± 1.21) times/week and (3.02 ± 0.76) min/time,respectively,which were significantly lower than those in the control group [(9.87 ± 1.46) times/week and (4.86 ± 0.98) min/time] (t =16.649,12.201,all P < 0.05).After treatment,the whole blood viscosity at high shear rate [(3.76 ± 0.41) mPa/s],whole blood viscosity in low shear [(8.13 ± 0.76) mPa/s],plasma viscosity [(1.23 ± 0.08) mPa/s],erythrocyte aggregation index [(2.06 ± 0.27)],fibrinogen [(2.46 ± 0.41) g/L] in the treatment group were lower than those in the control group[(4.53 ± 0.52) mPa/s,(9.61 ± 0.89) mPa/s,(2.09 ± 0.27) mPa/s,(2.63 ± 0.35),(3.53 ± 0.62) g/L] (t =9.562,10.396,25.170,10.604,11.844,all P < 0.05).After treatment,the interleukin-6 (IL-6) [(8.49 ± 1.76) pg/mL],intercellular adhesion molecule-1 (ICAM-1)[(85.25 ± 8.92) pg/mL],C reactive protein (CRP) [(8.74 ± 1.76) mg/L] in the treatment group were lower than those in the control group[IL-6 (11.32 ± 2.10) pg/mL,ICAM-1 (103.42 ± 10.72) pg/mL,CRP (14.98 ± 2.24)mg/L] (t =8.491,10.712,18.012,all P<0.05).Conclusion Tongxinluo capsule combined with metoprolol in the treatment of elderly patients with coronary heart disease angina pectoris has obvious curative effect,and can improve the patients'blood rheology and inflammatory reaction.
4.Study of the relationship between carotid atherosclerosis and progressing stroke
Qian-mei CHEN ; CHEN CHEN ; CHEN CHEN
Chinese Journal of Rehabilitation Theory and Practice 2004;10(12):731-732
ObjectiveTo investigate the relationship between carotid atherosclerosis and progressing stroke.Methods103 patients with acute cerebral infarction within the first 24 hours from onset were tested with carotid color doppler ultrasonography during the first week from admission. Univariate and multiple logistic regression analyses were performed to examine the relationship between carotid intima media thickness (IMT), plaque structure, the degree of artery stenosis and the early deterioration of cerebral infarction.ResultsPrevalence of carotid plaque and thickness of IMT in patients with progressing stroke were higher than that in non progressing patients. In logistic regression, presence of carotid plaque was independent predictors of progressing stroke. Plaque size, extent of artery stenosis and IMT were not included in the regression model.ConclusionPlaque structure and its chemical feature may be the cause of progressing stroke.
5.The parameter estimation method of Gaussian point spread function in microscopic images.
Journal of Biomedical Engineering 2014;31(1):53-57
As the most popular simplified model of the optical imaging system, the acquisition of the Gaussian point spread function (PSF) parameter is one of the hotspots and key points on which people do research in the field of image restoration. Based on the idea by which there exists deterministic mathematical relationship between Gaussian OTF feature points as well as its parameter and the frequency representation of the image in an existed literature, we proposed an automatic, accurate, stable, and improved approach. This method is able to give prominence to the related calculation feature by a Gaussian convolution and degeneration operation and finally realize the automatic esti mation of PSF parameter of a microscopic image. Experiments have proved that a good restoration result can be achieved utilizing the estimated PSF by the present method, which is of considerable application and reference value in restoration of other sorts with Gaussian approximate PSF model or 3D microscopic image restoration.
Algorithms
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Humans
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Image Interpretation, Computer-Assisted
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Imaging, Three-Dimensional
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Microscopy
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Models, Theoretical
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Normal Distribution
6.Decision-making of restorations for endodontically treated teeth.
West China Journal of Stomatology 2015;33(2):115-120
Coronal restoration of endodontically treated teeth may be viewed as one of the main parameters that influence the outcome of endodontic treatment. The purposes of restoring endodontically-treated teeth include preventing recontamination of the root canal system and periapical area, replacing the compromised dental hard tissue, restoring the coronal morphology and function, providing necessary strength for the restoration/tooth complex for functional stress, and avoiding crown and/or root fracture. This article reviewed recent researches on the restoration of endodontically treated teeth, provided evidence for clinical practice on topics as when to restore them, basic principles to be considered during treatment planning, and specific restoration options for both anterior and posterior teeth under different functional occulsal load conditions. Several issues should be taken into account during the decision making process, such as remaining tooth tissue, functional masticatory forces, comprehensive oral rehabilitation, and esthetic requirements.
Decision Making
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Dental Restoration, Permanent
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Humans
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Root Canal Therapy
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Tooth Crown
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Tooth, Nonvital
7.Classification and evolutionary analysis of pollen allergens
Chinese Journal of Microbiology and Immunology 2010;30(1):56-59
Objective To classify all the plant pollen allergens, each allergen sequence available was compared with protein family database. After that, the appearance and taxonomic distribution of each protein family could be known. When made reference to evolutionary analysis, a regular rule of the distribu-tion of all plant pollen allergens could be concluded. Methods Protein family memberships of each allergen were assigned by comparing the sequences with the Pfam database. Representative members of the most a-bundant pollen allergen families were compared with the Uniprot database using the BLAST server. Acces-sion number of all the interesting homologous could be obtained and all the sequence information could be ac-quired by Batch Entrez. Finally, the evolutionary trees were drawn with the help of MEGA4.0 software. Re-sults One hundred and sixty-eight pollen allergens were classified into 26 protein families. Profilins, pollen _allerg_1 and EF hands constituted the most abundant pollen allergen families. Profilins and EF hands oc-curred in almost all allergenic plant families, whereas allergenic Expansins, FAD_binding proteins, Amb_V allergens and Thaumatins were confined to single taxon. Conclusion It is concluded that the highly con-served sequences of allergens families such as Profilin may be one of the most important reasons of the cross reactivities in allergic diseases. The classification of pollen allergens may be helpful to clinical practice and basic research.
8.Clinical efficacy of intensive pulse light on facial telangiectasis and dermal atrophy caused by corticosteroiddependent dermatitis
Chinese Journal of Medical Aesthetics and Cosmetology 2010;16(4):227-229
Objevtive To evaluate the efficacy and safety of intensive pulse light (IPL) on treating the telangiectasis and dermal atrophy due to corticosteroid-dependent dermatitis.Methods We applied the IPL on 13 patients who had telangiectasis and dermal atrophy caused by corticosteroid-dependent dermatitis every three to four weeks.The treatment lasted three to eight times.The patients's skin types were Fitzpatrick Ⅲ-V and they had had corticosteroid therapy from 15 months to 13 years.Results To telangiectasis,3 patients had excellent effect afterwards;7 patients achieved fair good effect;Another patients also achieved improvement;2 cases had no positive effect;The total effective rate reached 76.92%.10 patients of dermal atrophy among the total 13 had improvement of the thickness of dermis.Conclusion Intensive pulse light can improve the telangiectasis and dermal atrophy of corticosteroid-dependent dermatitis.It needs less recovery time with fewer side effects and therefore IPL is an effective method for the Iesions.
9.The influence of cold provocation on retinal light sensitivity of patients with primary open-angle glaucoma
Chinese Journal of Ocular Fundus Diseases 2001;17(1):37-40
Objective To evaluate the effects of cold provocation on optic dise blood flow and retinal light sensitivity of primary open-angle glaucoma (POAG) patients,and explore the relationship between the changes of optic disc blood flow and retinal light sensitivity. Methods A total 33 POAG patients (33 eyes) and 13 normal controls (13 eyes) were tested by using the Heidelberg retinal flowmetry (HRF) and Topcon automatic perimeter,and the optic disc blood flow and retinal light sensitivity of POAG patients and normal controls were measured at normal conditions and after cold provocation. Results The mean optic disc blood flow,volume and the mean retinal light sensitivity of POAG patients decreased significantly (P<0.05) after cold provocation.There was a linear and significant relationship between the decrease of mean optic disc blood flow and mean retinal light sensitivity of POAG patients (r=0.615,P<0.001).The optic disc blood flow of POAG patients with a history of migraine were more likely to reduce in response to cold provocation and reduced much more than those without such history (P<0.05). Conclusion Cold provocation can significantly reduce both the optic disc blood flow and retinal light sensitivity in POAG patients.A close correlation was found between the amount of mean optic disc blood flow decrease and the volume of mean retinal light sensitivity decline.
10.Multidisciplinary approach to acute massive gastrointestinal bleeding caused by Dieulafoy's lesion
Chinese Journal of General Surgery 2012;(11):916-919
Objective To explore the multidisciplinary treatment for acute massive gastrointestinal (GI) bleeding caused by Dieulafoy's lesion.Methods The clinical data of 48 patients with Dieulafoy's lesions treated at our hospital from April 2007 to April 2012 were retrospectively analyzed.Of the 48 patients,40 were males and 8 were females,with a mean age of 46.7 years (range 21 -52 years).Accurate diagnosis was established by emergency upper gastrointestinal endoscopy, angiography and emergency laparotomy.Results The most common location of the bleeding Dieulafoy's lesion was at the body of stomach (40 cases),followed by the cardia (4 cases),the duodenum (2 cases) and the jejunum (2 cases ),with most lesions being located in the upper part of the stomach within 6 cm of the gastroesophageal junction.Correct diagnosis was made by endoscopy in 46 patients and by emergency laparotomy in 2 cases.Of the 18 patients initially treated endoscopically epinephrine injection and endoscopic hemoclips,2 cases needed angiography to identify the source of bleeding and were cured by transcatheter arterial embolization.23 patients underwent surgical therapy.In this series,47 cases were cured,1 patient died of hypovolaemic shock and multi-organ failure during the hospital stay.Average length hospital stay was (10.8 ± 2.5 ) d.Conclusions Dieulafoy' s lesion is less common cause of gastrointestinal bleeding.Endoscopy plays a key role in the diagnosis and treatment.Topical epinephrine injection and haemoclipping may cure the patients,if it fails angiography and embolization provides a therapy.Most patients may need a laparotomy and surgery as a decisive measure.


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